WILLIAM DOUGLAS RHINE MD
NPI 1003941329
Pediatrics - Neonatal-Perinatal Medicine in Palo Alto, CA
About William Douglas Rhine Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM DOUGLAS RHINE MD (NPI 1003941329) is an individual neonatal-perinatal medicine provider in Palo Alto, California, licensed in California (G56348) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
William Douglas Rhine Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show William Rhine reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Palo Alto, CA 94304
- Reassigned Medicare billing, California enrollment
- 3,617 clinicians in this Medicare group
Mountain Home, ID 83647
- Reassigned Medicare billing, Idaho enrollment
- 1,312 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is William Rhine's NPI number?
The NPI number for William Rhine is 1003941329. It was assigned to this individual provider in the NPPES registry on February 23, 2007.
Where is William Rhine located?
William Rhine practices at 725 Welch Rd, Palo Alto, CA 94304. The listed phone number is (650) 497-8000.
What is William Rhine's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.
Is William Rhine enrolled in Medicare?
Yes. William Rhine is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for William Rhine's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Rhine reassigns Medicare benefits to 2 organizations: Lpch Medical Group Div Of Lucile (Palo Alto, CA) and St Lukes Clinic-Treasure Valley LLC (Mountain Home, ID). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Rhine's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for William Rhine was last updated on April 16, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.